Dyeing apparatus



Nov. 5, 1 H. E. VAN NESS 1,734,455

' 1mm? APPARATUS Original Filed April 5, 192: 2 Sheets-Sheet 1 INVENTOR ATTORNEY Nov. 5, 1929. I ,4, E, VAN N555 1,734,455

IDYEING. APPARITUS Original Filed April 3, 192: 2 sheets-sna 2 Bar "Rm v ATTORNEY Patented -Nov. 5, 1929 HENRY E. VAN N E88, 01 ELMIRA, NEW YORK DYEING APPARATUS Original application filed April 3, 1923, Serial No. 629,633. Divided and this application filed December 30, 1925. Serial No. 78,323.

This invention relates to apparatus for impregnating parts of an absorbent mass with a liquid, and more particularly to apparatus for dyeing limited parts of a mass of yarn.

In my co-pending application filed April 3, 1923, Serial No. 629,633, of which the present application is a division, I described an apparatus or machine for dyeing predetermined parts of a mass of yarn which included means for directing the dye into the mass Fig. 2 is an enlarged vertical section of the pump and the injector of the machine taken on the plane of the axis of the pump cylinder and the axis of the injector; and

Fig. 3 is an enlarged side view partly in section showing a modified injector.

The yarn spotting machine shown in Fig. 1 comprises a base plate B onwhich are mounted a dye tank T and pump P and a work holder V8 In the use of the machine, a cone C of yarn is supported on the work holder TV and measured quantities of liquid dye drawn from the tank T are forced into the cone by the pump P through the injector J which is mounted on the cylinder of the pump.

The pump P has a cylinder P in the bore of which are located a valve sleeve P and a plunger P, which may be reciproeated by means of a handle P* connected with them through a cam P The pump cylinder is provided with an intake opening P connected with the tank T, an air vent opening P and a discharge opening P which are controlled by openings in the valve sleeve P in such manner that a measured quantity of liquid dye is allowed to run into the pump cylinder when the handle P is in raised position, and is forcibly ejected through the discharge opening P when the handle P is pressed downward.

'The present invention relates particularly to apparatus provided for directing the limited quantities of liquid which are ejected from the pump into a mass of yarn supported on the work holder. Such apparatus I have for the sake of brevity termed the injector. The injector J comprises a nozzle J and a .needle'J fixed in the discharge opening of the nozzle. The nozzle J has a body J on the rear end of which is a threaded stem J which is screwed into a tapped hole P in the pump cylinder P This hole P communicates with the discharge opening P of the pump. The stem J contains an axial bore J The central portion of the body J of the nozzle provides a flange J which is seated against a boss P on the cylinder P In an enlarged bore in the front portion of the body J 3 is seated the enlarged rear end of the needle J 2 which is retained in the body by a nut J screwed on the front end of the body. On the outer end of the nut J is a stop J providing an annular sur face J The needle J 2 contains a longitudinal passage J which extends substantially its entire length and communicates with the bore J of the nozzle. The needle is provided with a plurality of lateral openings J to permit egress from this passage throughout substantially the entire length of the projecting portion of the needle.

Means are provided for preventing the liquid which. is forced into the injector from spreading over the surface of the mass into which it is to be injected. The rear portion J 21 of the longitudinal passage J is closed and is preferably of greater cross-section than the front portion of this passage. WVhen an injection is made with the injector J, the needle J is thrust into the mass to such an extent that the real-most of the openings J is within the surface C of the mass. lVhen the needle is in this relation to the mass, the walls of the closed portion J of the passage J serve to a prevent a spreading of the liquid over the surface of the mass. 7

The needle J shown in Fig. 3 is similar IOU to the needle J except that an open groove J replaces the lateral openings J When an injection is made with the needle J it is thrust into the mass to such an extent that the closed portion J of its passage extends slightly inside the surface C of the mass.

The work holder IV is adapted to support a wound mass of yarn for movement towards and away from the injector to bring the mass into and out of operative relation therewith. These movements are in directions parallel to the axis of the injector, that is, of its discharge opening J and consequently parallel to the needle J of the injector.

A cone of yarn is mounted on a shaft "V carried by a plate IV which is slidably mounted on two bars V which extend parallel to the needle J The bars V. are mounted on a frame W which is mounted on the base plate B of the machine. A lever is provided for causing sliding'movements of the plate 76 on the bars IV An adjustable stop IV is provided for limiting inward movements of the plate IV. This sto) is set to prevent the plate IV from moving inward to an extent sufficient to bring the point J of the needle J into contact with the shaft as such contact would injure the point of the needle. The stop N, iowever, does not arrest inward movement of the plate IV until the mass of yarn has been pressed firmly against the stop J The use of the machine which has been described is as follows: A. cone C of yarn to be spotted is placed on the shaft of the work holder W. The lever W is then thrown to the left, moving the cone C towards the injector J and causing the needle J to penetrate the cone of yarn. The movement of the cone of yarn and the plate W is arrested when the surface C of the cone C comes into firm contact with the surface J of the stop J As the mass of yarn is compressible, the part of the mass which is brought against the stop J is somewhat compressed, as shown by the dotted line in Figs. 2 and 3, when the motion of the plate W is stopped. The rearmost of the openings J in the needle is within the surface C I of the mass. A measured quantity of liquid dye is then formed into the cone of yarn by depressing the pump handle P he dye enters the mass of yarn through the lateral openings J in the needle and spreads by absorption so as to color the portion of the mass surrounding the needle. The lever IV is then thrown to the right, moving the cone of yarn away from the injector so that the needle is withdrawn from the cone. The cone of yarn may then be turned or moved so as to bring other parts of its surface opposite the injector in order that other por ,tions of the mass may be dyed in a similar manner.

I wish it clearly understood that my invention is by no means limited to the specific apparatus described.

lVhat I claim is:

1. In apparatus of the class described, the combination of a needle form to provide a longitudinal passage which is enclosed near the rear end of the needle and to permit lateral egress from said passage through a substantial portion of the length of the needle, and means for thrusting the needle into an absorbent mass so as to bring the front end of the enclosed portion of the passage within the surface of the mass.

2. In apparatus of the class described, the combination of a needle formed to provide a longitudinal passage which is enclosed near the rear end of the needle and to permit lateral egress from said passage through a substantial portion of the length of the needle,

a support for an absorbent mass, means for causing relative movement between the needle and the support to thrust the needle into the mass, and means for stopping such movement when the front end of the enclosed portion of the passage is slightly inside the surface of the mass. I

3. Apparatus of the class described. comprising a needle having a central longitudinal passage which is enclosed near the rear end of the needle, lateral openings from said passage located along a substantial portion of the length of the needle, and means for thrusting the needle into an absorbent mass to bring the rearmost of said lateral openings inside the surface of the mass.

In testimony whereof I have hereunto set my hand.

HENRY E. VAN NESS. 

